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Finding the Fourth Proportional to 549.65, 758.58 and 353.63

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Solution

The fourth proportional to 549.65, 758.58 and 353.63 is: 488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.65 : 758.58 = 353.63 : x
  2. Step 2: Convert to fraction form
    549.65/758.58 = 353.63/x
  3. Step 3: Cross multiply
    549.65x = 758.58 × 353.63
  4. Step 4: Simplify right side
    549.65x = 268,256.65
  5. Step 5: Solve for x
    x = 268,256.65/549.65
  6. Step 6: Final answer
    x = 488.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.